The friction which exists between two layers of liquid in relative motion is called
capillarity
surface tension
viscosity
cohesion
Correct answer is C
No explanation has been provided for this answer.
Which of the following statements about a spring balance and/or a chemical balance is not correct?
the chemical balance operates on the principle of moments
the spring balance operates on Hooke's law
either may be used to measure the weight of a substance
the reading of a spring balance changes over the surface of the earth, while that of the chemical balance remains constant
Correct answer is C
No explanation has been provided for this answer.
electric potential (Vector)
momentum (scalar)
gravitational field intensity (scalar)
magnetic flux density (vector)
Correct answer is D
No explanation has been provided for this answer.
Translational motion
rotational motion
brownian motion
oscillatory motion
Correct answer is C
No explanation has been provided for this answer.
focal length of the lens
thickness of the lens
radius of curvature of the lens
diameter of the lens
Correct answer is C
No explanation has been provided for this answer.